Cloned from launchpad blueprint https://blueprints.launchpad.net/ceilometer/+spec/paas-usage-event-collection.

Description:

Ceilometer must be able to efficiently extract and process usage information from services in order to properly generate bills. In order to be able to efficiently process usage data, ceilometer requires services to implement a consistent interface. This document describes the metering requirements, use cases and provides a architecture for collection of usage information from Platform as a Service (PaaS) offerings.

Specification URL (additional information):

https://wiki.openstack.org/wiki/Ceilometer/blueprints/PaaSEventUsageCollection